PLATE 20 



B 





A. Juvenal male, Zennirfa-Zeiwldiira X Streptcqielia rixorici hybrid. (ZZ-R1). Hatched from egg of May 3, 1908. 



X 0.7. Ilayashi del., July lilOS. Sin-, Zawidn - Z<'wi,tii,-<t hybrid (ZZ1 of this plate) . Dain.V 



B. Adult , male, Zenaida X Zenaidura hybrid (ZZ1). Hatched from egg of Apr. 10, 1905. X 0.7. Hayashi del., 



May 1906. 



